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UBSan: undefined behaviours when using -fsanitize=undefined -fno-sanitize-recover on free-threaded build #132399

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UBSan: undefined behaviours when using -fsanitize=undefined -fno-sanitize-recover on free-threaded build#132399
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picnixz
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interpreter-core(Objects, Python, Grammar, and Parser dirs)topic-free-threadingtype-bugAn unexpected behavior, bug, or error

Description

@picnixz
picnixz
opened on Apr 11, 2025

Bug report

Bug description:

This issue mirrors #111178 but is dedicated to tracking UB failures for the free-threaded build. There should be only two free-threaded-specific issues and the rest are tracked in #132097.

CPython versions tested on:

CPython main branch

Operating systems tested on:

Linux

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Activity

  1. picnixz
    added
    extension-modulesC modules in the Modules dir
    interpreter-core(Objects, Python, Grammar, and Parser dirs)
    topic-free-threading
    type-bugAn unexpected behavior, bug, or error
    on Apr 11, 2025
  2. picnixz
    self-assigned this
    on Apr 11, 2025
  3. picnixz
    added a commit that references this issue on Apr 12, 2025

    gh-132399: fix invalid function signatures on the free-threaded build (…

    a81232c
  4. picnixz
    removed
    extension-modulesC modules in the Modules dir
    on Apr 12, 2025
  5. picnixz
    added a commit that references this issue on Apr 19, 2025

    gh-132399: ensure correct alignment of `PyInterpreterState` (#132428)

    427e7fc

  6. picnixz commented on Apr 19, 2025

    @picnixz
    picnixz
    on Apr 19, 2025
    MemberAuthor

    AFAIK, there is no other UB. I'll re-use that issue if there are more UBs that appear in the future.

  7. picnixz
    closed this as completedon Apr 19, 2025
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interpreter-core(Objects, Python, Grammar, and Parser dirs)topic-free-threadingtype-bugAn unexpected behavior, bug, or error

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